MESON Chess Problem Database
Problem Display
PID: 184322 (8/P2NBp2/bbR5/3k3r/B3n1Qp/2Pp4/1K6/8 w - - 0 1)
Dumitrescu, Ilie
Bulletin Ouvrier des Echecs, 1955
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Sxb6#
- 1...Rf5
- 2.Qxf5#
- 1...Rh6
- 2.Qf5#
- 1...Rh7
- 2.Qf5#
- 1...Rh8
- 2.Qf5#
- 1...Sd2
- 2.Rd6#
- 1...Sf2
- 2.Rd6#
- 1...Sxc3
- 2.Rd6#
- 1...Sg3
- 2.Rd6#
- 1...Sc5
- 2.Rd6#
- 2.Qd4#
- 1...Sg5
- 2.Rd6#
- 2.Qf5#
- 1...Sd6
- 2.Rxd6#
- 1...Sf6
- 2.Rd6#
- 1...f5
- 2.Qg8#
- 1...f6
- 2.Qe6#
- 2.Qg8#
- 1...Re5
- Tries
- 1.Sf6+?
- 1...Ke5
- 2.Qxe4#
- 1...Sxf6!
- 1...Ke5
- 1.Qxh5+?
- 1...f5
- 2.Qf7#
- 2.Qxf5#
- 1...Sg5!
- 1...f5
- 1.Qf4?
- threat
- 2.Sxb6#
- 2.Qxf7#
- 1...Bxa7
- 2.Qxf7#
- 1...Sxc3
- 2.Sxb6#
- 2.Sf6#
- 2.Rd6#
- 1...Bc5
- 2.Qxf7#
- 1...Sd6
- 2.Rxd6#
- 1...Re5
- 2.Sxb6#
- 2.Qxe5#
- 1...Rf5
- 2.Sxb6#
- 2.Qxf5#
- 1...Rh6
- 2.Sxb6#
- 2.Qe5#
- 2.Qf5#
- 1...Rh7
- 2.Sxb6#
- 2.Qe5#
- 2.Qf5#
- 1...Bg1
- 2.Qxf7#
- 1...Bf2
- 2.Qxf7#
- 1...Be3
- 2.Qxf7#
- 1...Bd4
- 2.Qxf7#
- 1...Ba5
- 2.Qxf7#
- 1...Bc7
- 2.Qxf7#
- 1...Bd8
- 2.Qxf7#
- 1...Sd2
- 2.Sxb6#
- 2.Sf6#
- 2.Rd6#
- 1...Sf2
- 2.Sxb6#
- 2.Sf6#
- 2.Rd6#
- 1...Sg3
- 2.Sxb6#
- 2.Sf6#
- 2.Rd6#
- 1...Sc5
- 2.Sxb6#
- 2.Sf6#
- 2.Rd6#
- 2.Qd4#
- 1...Sg5
- 2.Sxb6#
- 2.Sf6#
- 2.Rd6#
- 2.Qe5#
- 2.Qf5#
- 1...Sf6
- 2.Sxb6#
- 2.Sxf6#
- 2.Rd6#
- 1...f5
- 2.Sxb6#
- 2.Qe5#
- 1...f6
- 2.Sxb6#
- 1...Bb5!
- threat
- 1.a8Q?
- threat
- 2.Rc5#
- 1...Bc5
- 2.Rxc5#
- 1...Rf5
- 2.Qxf5#
- 1...Sc5
- 2.Rxc5#
- 2.Rd6#
- 2.Qd4#
- 1...f5
- 2.Qgg8#
- 2.Qag8#
- 1...Bb7!
- threat
- 1.a8B?
- threat
- 2.Rc5#
- 1...Bc5
- 2.Rxc5#
- 1...Rf5
- 2.Qxf5#
- 1...Sc5
- 2.Rxc5#
- 2.Rd6#
- 2.Qd4#
- 1...f5
- 2.Qg8#
- 1...Bb7!
- threat
- 1.Sf6+?
- Keys
- 1.Rc4!
- threat
- 2.Qxe4#
- 1...Kxc4
- 2.Sxb6#
- 1...Bxc4
- 2.a8Q#
- 2.a8B#
- 1...Sxc3
- 2.Bc6#
- 1...f5
- 2.Qg8#
- 1...Re5
- 2.Sxb6#
- 1...Bd4
- 2.Rxd4#
- 1...Sd2
- 2.Bc6#
- 1...Sf2
- 2.Bc6#
- 1...Sg3
- 2.Bc6#
- 1...Sc5
- 2.Rd4#
- 1...Sg5
- 2.Bc6#
- 1...Sd6
- 2.Bc6#
- 1...Sf6
- 2.Bc6#
- threat
- 1.Rc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 6
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- R(e);SBLOCK::S(G),XB(g)
- R(e);N_GUARD::QAR2(D),XR(e)
- R(e);N_GUARD::QAR2(D)
- S(b);N_GUARD::R1(E)
- S(b);N_GUARD,XP(B)::R1(E)
- S(b);N_GUARD::R1(E),XS(b)
- P(h);OGATEB::QAB(D)
- Tries
- Try
- S(G);CHECK
- Vars
- K(d);P-FLIGHT::QAR1(D),XS(b)
- Refutation
- S(b);XS(G)
- Try
- Q(D);CHECK,XR(e)
- Refutation
- S(b);P_SPINS(b)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- B(g);XP(F)::QAB(D),XP(h)
- B(g);::QAB(D),XP(h)
- S(b);N_GUARD::R1(E),XS(b)
- B(g);P_PINP(B)::QAB(D),XP(h)
- P(h);::S(G),XB(g)
- Refutation
- B(f);
- Try
- P(F);
- Threat
- QAB(F)+R(E),DCHECK
- Vars
- B(g);::QAB(F)+R(E),DCHECK,XB(g)
- R(e);N_GUARD::QAR2(D),XR(e)
- Refutation
- B(f);
- Try
- P(F);
- Threat
- B(F)+R(E),DCHECK
- Vars
- B(g);::B(F)+R(E),DCHECK,XB(g)
- R(e);N_GUARD::QAR2(D),XR(e)
- P(h);OGATEB::QAB(D)
- Refutation
- B(f);
- Try
- Actual
- R(E);
- Threat
- QAB1(D),XS(b)
- Vars
- K(d);P_SPINS(b),S_FLIGHT,XR(E)::S(G),XB(g)
- B(f);N_GUARD,SBLOCK,XR(E)::P=Q
- S(b);XP(B)::B(C)
- P(h);OGATEB::QAB(D)
- R(e);SBLOCK::S(G),XB(g)
- B(g);N_GUARD,P_PINP(B)::R1(E),XB(g)
- S(b);::B(C)
- S(b);S_CUTB(g)::R1(E)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).